比较了氯乙酰氯和溴乙酰溴对中间体及硝基安定收率的影响。
The effect of chloroacetyl chloride and bromoacetyl bromide on yields of intermediates and nitrazepam was compared.
托纳博沙是一种抑制CSD的二乙基溴乙酰胺间隙结合阻滞剂并曾被认为是一种能防止偏头痛的的新化合物。
Tonabersat is a neuronal gap-junction blocker that inhibitsCSD and was once considered a promising new compound to preventmigraine attacks.
采用正丁醇-氢氧化钠反应体系，以十六烷基三甲基溴化铵为相转移催化剂，制得脱乙酰度为92%的壳聚糖。
The chitosan was prepared with 92% deacetylation degree using n-butanol and sodium hydroxide as a reaction medium and cetyltrimethylammonium bromide as a phase transfer catalyst.
光照可加速溴乙酰胺的降解。
其结构经红外光谱、核磁共振谱及元素分析证明为2—乙酰基—7—甲胺基—4—溴革酮。
The structure of the product was proved by IR, HNMR and elemental analysis. That is 2 -acetyl - 7 -methylamino -4-bromotropone.
以异丙醇为柱前衍生试剂，建立了反相高效液相色谱法间接测定2-乙酰氧基异丁酰溴的新方法。
A rapid reverse high performance liquid chromatography method based on the iso - propyl alcohol as an agent of pre-derivatization is developed for the determination of 2-acetoxyisobutyryl bromide.
用薄层色谱法监测溴素溴化乙酰丙酸乙酯生成3-溴乙酰丙酸乙酯的反应过程，优化了反应条件，方法简单，快速，准确。
A simple TLC method for monitoring the synthetic process of 3-bromo-ethyl levulinate is reported, and the reaction condition is optimized.
结果表明，土壤的碱性愈强，有机物质含量愈高，溴乙酰胺在土壤中的降解愈快。
The results showed that:the more stronger the alkalinity of the soil was, the more higher the levels of organic compounds in the soil was, the more rapidly the BA was degraded in the soil.
植物水解酶与胆碱酯酶的区别在于它们不能催化溴化乙酰胆碱或溴化硫代乙酰胆碱水解。
But they differ from cholinesterase in that they do not catalytically hydrolyze acetylcholine bromide or butylcholine bromide at pH 7—8.
方法以1，3-溴丙烷与乙酰乙酸乙酯为原料经环合、开环、溴代等反应合成。
METHODS The compound was synthesized through the reaction of cyclization, split, bromination et al and using 1,3-propyl bromide and ethyl acetoacetate as raw materials.
溴乙酰胺在土壤中为短残留化合物。
西司他丁钠的合成以乙酰乙酸乙酯和1-溴-5-氯戊烷为原料，经活性亚甲基烃化、成肟和水解3步反应得7-氯-2-氧庚酸乙酯；
The synthesis of Cilastatin sodium started from ethyl acetoacetate and 1-bromo-5-chloropentane, through 3 steps to produce ethyl 7-chloro-2-oxoheptanoate;
以1，3-二甲基金刚烷为原料，经溴化、乙腈和硫酸的作用下乙酰胺基化、水解、成盐等反应及改进的后处理方法得到盐酸美金刚，总收率6 7。8%。
Memantine hydrochloride was synthesized from 1,3 dimethyladamantane by bromination, acetamidation with acetonitrile in sulfuric acid and hydrolysis with an overall yield of 67.8%.
以1，3-二甲基金刚烷为原料，经溴化、乙腈和硫酸的作用下乙酰胺基化、水解、成盐等反应及改进的后处理方法得到盐酸美金刚，总收率6 7。8%。
Memantine hydrochloride was synthesized from 1,3 dimethyladamantane by bromination, acetamidation with acetonitrile in sulfuric acid and hydrolysis with an overall yield of 67.8%.
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